Physical properties of the WASP-67 planetary system from multi-colour photometry
文献类型：期刊论文
| 作者 | Mancini, L1; Southworth, J2; Ciceri, S1; Novati, SC3,4; Dominik, M5; Henning, T1; Jorgensen, UG6,7; Korhonen, H6,7,8; Nikolov, N9; Alsubai, KA10 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2014-08 |
| 卷号 | 568 |
| 关键词 | planetary systems stars: fundamental parameters techniques: photometric |
| ISSN号 | 0004-6361 |
| 产权排序 | 第十四完成单位 |
| 通讯作者 | Mancini, L (reprint author), Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany. |
| 英文摘要 | Context. The extrasolar planet WASP-67 b is the first hot Jupiter definitively known to undergo only partial eclipses. The lack of the second and third contact points in this planetary system makes it difficult to obtain accurate measurements of its physical parameters. Aims. By using new high precision photometric data we confirm that WASP-67 b shows grazing eclipses and compute accurate estimates of the physical properties of the planet and its parent star. Methods. We present high-quality. multi-colour, broad-band photometric observations comprising five light curves covering two transit events, obtained using two medium-class telescopes and the telescope defocusing technique. One transit was observed through a Bessel-R filter and the other simultaneously through filters similar to Sloan g ' r ' i ' z ' We modelled these data using,JKTEBOP. The physical parameters of the system were obtained from the analysis of these light curves and from published spectroscopic measurements. Results. All five of our light curves satisfy the criterion for being grazing eclipses. We revise the physical parameters of the whole WASP 67 system and, in particular. significantly improve the measurements of the planet's radius (R-b = 1.091 +/- 0.046 R-Jup) and density(rho(b) = 0.292 +/- 0.036 rho(Jup)), as compared to the values in the discovery paper (Rb = 1.4(-0.2)(+0.3) R-Jup and rho(b), = 0.16 +/- 0.08 rho(Jup)) The transit ephemeris was also substantially refined. We investigated the variation of the planet's radius as a function of the wavelength, using the simultaneous multi-band data finding that our measurements are consistent with a Oat spectrum to within the experimental uncertainties. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | TRANSITING EXTRASOLAR PLANETS ; STELLAR EVOLUTION DATABASE ; HOT JUPITERS ; LIGHT CURVES ; MODELS ; ISOCHRONES ; RADIUS ; MASS ; ATMOSPHERES ; TELESCOPE |
| 收录类别 | SCI ; EI |
| 原文出处 | http://www.aanda.org/articles/aa/abs/2014/08/aa24106-14/aa24106-14.html |
| 语种 | 英语 |
| WOS记录号 | WOS:000341185900111 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6799]  |
| 专题 | 云南天文台_系外行星研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Max-Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany 2.Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK 3.International Institute for Advanced Scientific Studies (IIASS), 84019 Vietri Sul Mare (SA), Italy 4.Department of Physics, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy 5.SUPA, University of St Andrews, School of Physics & Astronomy, North Haugh, St Andrews, KY16 9SS, UK 6.Niels Bohr Institute, University of Copenhagen, Juliane Maries vej 30, 2100 Copenhagen Ø, Denmark 7.Centre for Star and Planet Formation, Geological Museum, Øster Voldgade 5-7, 1350 Copenhagen, Denmark 8.Finnish Centre for Astronomy with ESO (FINCA), University of Turku, Väisäläntie 20, 21500 Piikkiö, Finland 9.Astrophysics Group, University of Exeter, Stocker Road, EX4 4QL, Exeter, UK 10.Qatar Foundation, PO Box 5825, Doha, Qatar |
| 推荐引用方式 GB/T 7714 | Mancini, L,Southworth, J,Ciceri, S,et al. Physical properties of the WASP-67 planetary system from multi-colour photometry[J]. ASTRONOMY & ASTROPHYSICS,2014,568. |
| APA | Mancini, L.,Southworth, J.,Ciceri, S.,Novati, SC.,Dominik, M.,...&Wertz, O.(2014).Physical properties of the WASP-67 planetary system from multi-colour photometry.ASTRONOMY & ASTROPHYSICS,568. |
| MLA | Mancini, L,et al."Physical properties of the WASP-67 planetary system from multi-colour photometry".ASTRONOMY & ASTROPHYSICS 568(2014). |
入库方式： OAI收割
来源：云南天文台
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